Marching bands have come a long way since Sousa and 76 Trombones. Drum and Bugle Corps are evolving into specialty entertainment clusters that reflect current musical tastes and pop culture trends.

It's hugely expensive to compete on the international level like the Blue Devils. Previously a drum corps, the Indiana Star disbanded and launched a long-running and successful Broadway play and national road company called "Blast." Now the Blue Devils have launched BD Entertainment, which is a hip hop group formed from the Blue Devils Drum and Bugle Corps.